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Asthmatic symptoms after exposure to ethylenebisdithiocarbamates and other pesticides in the Europit field studiesDepartment of Epidemiology, Maastricht University, The Netherlands; currently employed at Institute for Risk Assessment Sciences, Division Environmental Epidemiology, Utrecht University, The Netherlands
Department of Epidemiology, Maastricht University, The Netherlands LGPM.vanAmelsvoort{at}epid.unimaas.nl
International Centre for Pesticides and Health Risk Prevention, University Hospital L. Sacco, Milan, Italy
Laboratory of Toxicology, Department of Pharmacological Sciences, University of Milan, Milan, Italy
Department of Occupational and Environmental Health, University of Milan and Fondazione Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy
Department of Occupational and Environmental Health, University of Milan and Fondazione Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy
Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy; Istituto di Statistica Medica e Biometria, University of Milan, Italy
National Centre of Public Health Protection, Bulgaria
Department of Immunotoxicology, Nofer Institute of Occupational Medicine, Lodz, Poland
Finnish Institute of Occupational Health, Kuopio, Finland
National Institute of Public Health and the Environment, Bilthoven, The Netherlands
National Institute of Public Health and the Environment, Bilthoven, The Netherlands; Department of Health Risk Analyses and Toxicology, Maastricht University, the Netherlands We conducted a multicenter prospective study to assess the effects of occupational exposure to ethylenebisdithiocarbamate fungicides and/or other pesticides on self-reported asthma and asthmatic symptoms. This multicenter study was conducted among 248 workers exposed to pesticides and 231 non-exposed workers from five field studies. The five field studies were carried out in The Netherlands, Italy, Finland, and two studies in Bulgaria. Subjects constituting this cohort completed a self-administered questionnaire at baseline (before the start of exposure). Ethylenethiourea in urine was determined to assess exposure to ethylenebisdithiocarbamates. In multivariate analyses adjusted for all potential confounders (age, education, residence, smoking, gender, and field study), we found inverse associations, all not statistically significant, between occupational exposure to pesticides and asthma diagnosis (OR 0.41; 95% CI 0.15–1.11), complains of chest tightness (OR 0.60; 95% CI 0.36–1.02), wheeze (OR 0.56; 95% CI 0.32–0.98), asthma attack (OR 0.52; 95% CI 0.12–2.25), and asthma medication (OR 0.79; 95% CI 0.25–2.53). Furthermore, we reported null associations for multivariate analysis using ethylenethiourea as determinant for exposure. Although exposure to pesticides remains a potential health risk, our results do not suggest an association between exposure to ethylenebisdithiocarbamates and/or other pesticides used in our study on asthma and asthmatic symptoms.
Key Words: asthma epidemiology ethylenebisdithiocarbamates multicenter study wheeze
Human & Experimental Toxicology, Vol. 27, No. 9,
721-727 (2008) |
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